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#   Copyright (C) 2003, 2005, 2008, 2009, 2010 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; see the file COPYING3.  If not see

# .

proc load_gcc_lib { filename } {

    global srcdir

    load_file $srcdir/../../gcc/testsuite/lib/$filename

}

load_lib dg.exp

load_lib libgloss.exp

load_gcc_lib target-libpath.exp

load_gcc_lib wrapper.exp

# Define libffi callbacks for dg.exp.

proc libffi-dg-test-1 { target_compile prog do_what extra_tool_flags } {

    # To get all \n in dg-output test strings to match printf output

    # in a system that outputs it as \015\012 (i.e. not just \012), we

    # need to change all \n into \r?\n.  As there is no dejagnu flag

    # or hook to do that, we simply change the text being tested.

    # Unfortunately, we have to know that the variable is called

    # dg-output-text and lives in the caller of libffi-dg-test, which

    # is two calls up.  Overriding proc dg-output would be longer and

    # would necessarily have the same assumption.

    upvar 2 dg-output-text output_match

    if { [llength $output_match] > 1 } {

        regsub -all "\n" [lindex $output_match 1] "\r?\n" x

        set output_match [lreplace $output_match 1 1 $x]

    }

    # Set up the compiler flags, based on what we're going to do.

    set options [list]

    switch $do_what {

        "compile" {

            set compile_type "assembly"

            set output_file "[file rootname [file tail $prog]].s"

        }

        "link" {

            set compile_type "executable"

            set output_file "[file rootname [file tail $prog]].exe"

            # The following line is needed for targets like the i960 where

            # the default output file is b.out.  Sigh.

        }

        "run" {

            set compile_type "executable"

            # FIXME: "./" is to cope with "." not being in $PATH.

            # Should this be handled elsewhere?

            # YES.

            set output_file "./[file rootname [file tail $prog]].exe"

            # This is the only place where we care if an executable was

            # created or not.  If it was, dg.exp will try to run it.

            remote_file build delete $output_file;

        }

        default {

            perror "$do_what: not a valid dg-do keyword"

            return ""

        }

    }

    if { $extra_tool_flags != "" } {

        lappend options "additional_flags=$extra_tool_flags"

    }

    set comp_output [libffi_target_compile "$prog" "$output_file" "$compile_type" $options];

    return [list $comp_output $output_file]

}

proc libffi-dg-test { prog do_what extra_tool_flags } {

    return [libffi-dg-test-1 target_compile $prog $do_what $extra_tool_flags]

}

proc libffi-init { args } {

    global gluefile wrap_flags;

    global srcdir

    global blddirffi

    global objdir

    global blddircxx

    global TOOL_OPTIONS

    global tool

    global libffi_include

    global libffi_link_flags

    global tool_root_dir

    global ld_library_path

    set blddirffi [lookfor_file [get_multilibs] libffi]

    verbose "libffi $blddirffi"

    set blddircxx [lookfor_file [get_multilibs] libstdc++-v3]

    verbose "libstdc++ $blddircxx"

    set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]

    if {$gccdir != ""} {

        set gccdir [file dirname $gccdir]

    }

    verbose "gccdir $gccdir"

    set ld_library_path "."

    append ld_library_path ":${gccdir}"

    set compiler "${gccdir}/xgcc"

    if { [is_remote host] == 0 && [which $compiler] != 0 } {

        foreach i "[exec $compiler --print-multi-lib]" {

            set mldir ""

            regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir

            set mldir [string trimright $mldir "\;@"]

            if { "$mldir" == "." } {

                continue

            }

            if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {

                append ld_library_path ":${gccdir}/${mldir}"

            }

        }

    }

    # add the library path for libffi.

    append ld_library_path ":${blddirffi}/.libs"

    # add the library path for libstdc++ as well.

    append ld_library_path ":${blddircxx}/src/.libs"

    verbose "ld_library_path: $ld_library_path"

    # Point to the Libffi headers in libffi.

    set libffi_include "${blddirffi}/include"

    verbose "libffi_include $libffi_include"

    set libffi_dir  "${blddirffi}/.libs"

    verbose "libffi_dir $libffi_dir"

    if { $libffi_dir != "" } {

        set libffi_dir [file dirname ${libffi_dir}]

        set libffi_link_flags "-L${libffi_dir}/.libs"

        lappend libffi_link_flags "-L${blddircxx}/src/.libs"

    }

    set_ld_library_path_env_vars

    libffi_maybe_build_wrapper "${objdir}/testglue.o"

}

proc libffi_exit { } {

    global gluefile;

    if [info exists gluefile] {

        file_on_build delete $gluefile;

        unset gluefile;

    }

}

proc libffi_target_compile { source dest type options } {

    global gluefile wrap_flags;

    global srcdir

    global blddirffi

    global TOOL_OPTIONS

    global libffi_link_flags

    global libffi_include

    global target_triplet

    if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {

        lappend options "libs=${gluefile}"

        lappend options "ldflags=$wrap_flags"

    }

    # TOOL_OPTIONS must come first, so that it doesn't override testcase

    # specific options.

    if [info exists TOOL_OPTIONS] {

        lappend  options [concat "additional_flags=$TOOL_OPTIONS" $options];

    }

    # search for ffi_mips.h in srcdir, too

    lappend options "additional_flags=-I${libffi_include} -I${srcdir}/../include  -I${libffi_include}/.."

    lappend options "additional_flags=${libffi_link_flags}"

    # Darwin needs a stack execution allowed flag.

    if { [istarget "*-*-darwin9*"] || [istarget "*-*-darwin1*"]

         || [istarget "*-*-darwin2*"] } {

        lappend options "additional_flags=-Wl,-allow_stack_execute"

    }

    # If you're building the compiler with --prefix set to a place

    # where it's not yet installed, then the linker won't be able to

    # find the libgcc used by libffi.dylib.  We could pass the

    # -dylib_file option, but that's complicated, and it's much easier

    # to just make the linker find libgcc using -L options.

    if { [string match "*-*-darwin*" $target_triplet] } {

        lappend options "libs= -shared-libgcc"

    }

    if { [string match "*-*-openbsd*" $target_triplet] } {

        lappend options "libs= -lpthread"

    }

    lappend options "libs= -lffi"

    verbose "options: $options"

    return [target_compile $source $dest $type $options]

}

# Utility routines.

#

# search_for -- looks for a string match in a file

#

proc search_for { file pattern } {

    set fd [open $file r]

    while { [gets $fd cur_line]>=0 } {

        if [string match "*$pattern*" $cur_line] then {

            close $fd

            return 1

        }

    }

    close $fd

    return 0

}

# Modified dg-runtest that can cycle through a list of optimization options

# as c-torture does.

proc libffi-dg-runtest { testcases default-extra-flags } {

    global runtests

    foreach test $testcases {

        # If we're only testing specific files and this isn't one of

        # them, skip it.

        if ![runtest_file_p $runtests $test] {

            continue

        }

        # Look for a loop within the source code - if we don't find one,

        # don't pass -funroll[-all]-loops.

        global torture_with_loops torture_without_loops

        if [expr [search_for $test "for*("]+[search_for $test "while*("]] {

            set option_list $torture_with_loops

        } else {

            set option_list $torture_without_loops

        }

        set nshort [file tail [file dirname $test]]/[file tail $test]

        foreach flags $option_list {

            verbose "Testing $nshort, $flags" 1

            dg-test $test $flags ${default-extra-flags}

        }

    }

}

# Like check_conditional_xfail, but callable from a dg test.

proc dg-xfail-if { args } {

    set args [lreplace $args 0 0]

    set selector "target [join [lindex $args 1]]"

    if { [dg-process-target $selector] == "S" } {

        global compiler_conditional_xfail_data

        set compiler_conditional_xfail_data $args

    }

}

proc check-flags { args } {

    # The args are within another list; pull them out.

    set args [lindex $args 0]

    # The next two arguments are optional.  If they were not specified,

    # use the defaults.

    if { [llength $args] == 2 } {

        lappend $args [list "*"]

    }

    if { [llength $args] == 3 } {

        lappend $args [list ""]

    }

    # If the option strings are the defaults, or the same as the

    # defaults, there is no need to call check_conditional_xfail to

    # compare them to the actual options.

    if { [string compare [lindex $args 2] "*"] == 0

         && [string compare [lindex $args 3] "" ] == 0 } {

        set result 1

    } else {

        # The target list might be an effective-target keyword, so replace

        # the original list with "*-*-*", since we already know it matches.

        set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]]

    }

    return $result

}

proc dg-skip-if { args } {

    # Verify the number of arguments.  The last two are optional.

    set args [lreplace $args 0 0]

    if { [llength $args] < 2 || [llength $args] > 4 } {

        error "dg-skip-if 2: need 2, 3, or 4 arguments"

    }

    # Don't bother if we're already skipping the test.

    upvar dg-do-what dg-do-what

    if { [lindex ${dg-do-what} 1] == "N" } {

      return

    }

    set selector [list target [lindex $args 1]]

    if { [dg-process-target $selector] == "S" } {

        if [check-flags $args] {

            upvar dg-do-what dg-do-what

            set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]

        }

    }

}

# We need to make sure that additional_files and additional_sources

# are both cleared out after every test.  It is not enough to clear

# them out *before* the next test run because gcc-target-compile gets

# run directly from some .exp files (outside of any test).  (Those

# uses should eventually be eliminated.)

# Because the DG framework doesn't provide a hook that is run at the

# end of a test, we must replace dg-test with a wrapper.

if { [info procs saved-dg-test] == [list] } {

    rename dg-test saved-dg-test

    proc dg-test { args } {

        global additional_files

        global additional_sources

        global errorInfo

        if { [ catch { eval saved-dg-test $args } errmsg ] } {

            set saved_info $errorInfo

            set additional_files ""

            set additional_sources ""

            error $errmsg $saved_info

        }

        set additional_files ""

        set additional_sources ""

    }

}

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